USG offers a wide range of solutions for tile and flooring, from
cement and glass-mat gypsum and Fiberock® backers, to self-leveling
floor underlayments, membranes and accessories that are versatile,
easy to install and provide performance you can trust. Many of these
products are also mold and mildew resistant, scoring a perfect 10 on
the ASTM D 3273 test.

USG offers the industry's leading interior panels with active
mold-inhibitors both on the paper and in the core. These gypsum panels
are designed to inhibit mold growth by treating both the surface paper
and the core with mold fighting agents.

The following commercial panels score a 10 (on a scale of 0 to 10)
for mold resistance under the ASTM guidelines at the time of manufacture.

USG offers structural concrete panels for floors that are lighter
than precast and poured in place concrete. They are ideal for new
construction, mezzanines and adding to existing buildings.

The following structural concrete panels are resistant to mold
growth. Independent tests by a certified laboratory confirmed no mold
growth, recording a rating of 0 (zero) as measured by ASTM G21 and a
rating of 10 as measured by ASTM D3273.